Quote:
Originally Posted by milesz
Thanks, now I understand.
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The I-Bus carries the steering wheel audio control commands, like channel up/down and volume up/down. So, if your HU can speak to the I-Bus and receive those commands, you would want to hook it up so that your steering wheel buttons will work with the new HU.
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2000 E38 750iL Highline Edition, Upgraded with the lastest 2006 X5 Electronics
MKIV Navigation, 16:9 Display, Bluetooth, TV/Video with Backup Camera, Sirius, and Aux Input
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